[FFP] Hutchinson, 1959
The Families of Flowering Plants (2nd ed.)
[FPN] Hitchcock & Cronquist, 1998
Flora of the Pacific Northwest (11th ed.); ISBN 0-295-95273-3
[GNSP] Wielgorskaya, 1995
Dictionary of generic names of seed plants
[maps] Warning! The maps are automatically generated from the textual information, and the process does not always produce acceptable result; See about maps for more info.
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Keep in mind that the taxonomic information is copied from various sources, and may include many inaccuracies. Expert help is welcome.